If you have an existing website or blog that receives good traffic then you can use the traffic to earn good revenues through the site. You can turn into a publisher wherein you can advertise other website at your web space and earn revenues for the ads. Many of the website owners use this for making money from their websites. It is an effective way by which advertisers can get better traffic and publisher get to earn money for it. In order to earn revenue through your site, you need to rent your web space to the advertisers. You can use display ads, banner ads or give out other similar ad space to them. When the traffic at your website sees the advertisement then they may click on it and are taken to the advertised website. Thus you basically send your own traffic to the advertised site and get to earn for that. The advertised website would pay your for sending the traffic to them this is how the publishers can make money from their websites. The pay per click is generally followed in the online advertising and is quite effective. In order to get advertisement and contact advertisers, you can tie up with the online media companies that act as mediator between the advertiser and the publisher.